causing Disease in Man in Nyasaland. 



211 



Table VII. — The Average Duration, in Days, of the Disease in Various 

 Animals caused by the Wild Glossina morsitans Strain of the Trypano- 

 some causing Disease in Man in Nyasaland. 





Ox. 



Goat. 



Monkey. 



Dog. 



Eabbit. 



Guinea- 

 pig- 



White 

 rat. 



Average dura- 

 tion, in days 



Eec. 



54 



38 



29 



47 



81 



26 



No. of animals 

 employed 



2 



16 



14 



25 



3 



10 



19 



Compare this with the following Table : — ■ 



Table VIIL — The Average Duration of Life, in Days, of Various Animals 

 infected with the Human Strain of the Trypanosome causing Disease in 

 Man in Nyasaland. 





Ox. 



Goat. 



Monkey. 



Dog. 



Eabbit. 



Guinea- 

 pig- 



White 

 rat. 



Average dura- 

 tion, in days 



134 



42 



26 



34 



28 



67 



30 



No. of animals 

 employed 



1 



29 



20 



25 



7 



15 



21 



Table IX.— The Percentages of Eecoveries in Various Animals infected with 

 the Wild Glossina morsitans Strain of the Trypanosome causing Disease 

 in Man in Nyasaland. 





Ox. 



Goat. 



Monkey. 



Dog. 



Eabbit. 



Guinea- 

 pig- 



White 

 rat. 



Percentages ... 



100 



6 



7 



4 















No. of animals 

 employed 



2 



17 



15 



. 



26 



3 



10 



19 



Compare this with the following Table : — 



